JP6888704B1 - Laminating equipment and laminating method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To stack sheet-shaped members without damaging them. SOLUTION: A flexible transfer plate (20), a clamp mechanism (25) for holding a sheet-like member placed on the transfer plate (20) on the transfer plate (20), and a transfer plate. It is provided with an adjusting mechanism capable of adjusting the degree of curvature of (20). When the new sheet-like member (1) placed on the transfer plate (20) is laminated on the already laminated sheet-like member (1), the transfer plate (20) is flattened by the adjusting mechanism. It is deformed from the state to the curved state, and the new sheet-like member (1) placed on the transport plate (20) is deformed from the flat state to the curved state. [Selection diagram] FIG. 9

Description

The present invention relates to a laminating apparatus and a laminating method.

As one device used for manufacturing a lithium ion secondary battery formed by a laminated body of a bag-shaped positive electrode and a negative electrode, a laminating device for alternately laminating a bag-shaped positive electrode and a negative electrode is known (for example, a patent). See Document 1). In this laminating device, a rectangular sheet-shaped bag-shaped positive electrode and a rectangular sheet-shaped negative electrode are alternately guided above the laminating table by a robot arm, and these bag-shaped positive electrodes and negative electrodes are sequentially laminated on the laminating table. .. On the laminated table, in order to keep the bag-shaped positive electrode and the negative electrode in a laminated state, the four corners of the uppermost bag-shaped positive electrode or the negative electrode among the stacked bag-shaped positive electrodes and negative electrodes are viewed from above. It is pressed by the clamp arm.

By the way, in this laminating device, when laminating a new bag-shaped positive electrode or negative electrode, the four corners of the uppermost bag-shaped positive electrode or negative electrode among the already laminated bag-shaped positive electrode or negative electrode are pressed by a clamp arm. In the state, first, the flat tip surface of the robot arm presses the center of the new bag-shaped positive electrode or negative electrode onto the top bag-shaped positive electrode or negative electrode that is laminated. At this time, each clamp arm is covered from above by a new bag-shaped positive electrode or a peripheral portion of the negative electrode. Next, the clamp arm is temporarily retracted upward in a state where the laminated bag-shaped positive electrode or negative electrode is pressed by the flat tip surface of the robot arm in this way, and then the top bag is again placed. The four corners of the positive electrode or the negative electrode are pressed by the clamp arm. In this way, the bag-shaped positive electrode and the negative electrode are sequentially laminated on the laminating table.

Japanese Unexamined Patent Publication No. 2012-221715

However, in this laminating device, when the clamp arm is separated upward, the peripheral portion of the new laminated bag-shaped positive electrode or negative electrode is pulled up by the clamp arm, and the peripheral portion of the laminated new bag-shaped positive electrode or negative electrode is lifted. Turn over. However, it is not preferable that an extreme bending stress is generated in the peripheral portion of the newly laminated bag-shaped positive electrode or negative electrode due to such a flipping action, and the object to be laminated is an all-solid-state lithium ion. In the case of a sheet-shaped electrode for a secondary battery, if the peripheral portion of the sheet-shaped electrode is turned up in this way, there is a problem that the outer peripheral edge of the sheet-shaped electrode is damaged and the sheet-shaped electrode is cracked. ..

Therefore, in the present invention, in order to prevent such a problem from occurring, a flexible transfer plate, a clamp mechanism for holding a new sheet-like member mounted on the transfer plate on the transfer plate, and transfer are provided. It is equipped with an adjustment mechanism that can adjust the degree of curvature of the plate, and when a new sheet-like member placed on the transfer plate is laminated on the already laminated sheet-like member, it is conveyed by the adjustment mechanism. Provided is a laminating device that deforms a plate from a flat state to a curved state and deforms a new sheet-like member placed on a transport plate from a flat state to a curved state.

Further, according to the present invention, in the laminating method in which a new sheet-like member is laminated on the already laminated sheet-like member, the new sheet-like member mounted on the flexible transport plate is already laminated. The new sheet-shaped member is deformed from the flat state to the curved state by arranging the sheet-shaped members aligned with each other at intervals and bending the transport plate from the flat state to the central portion of the new sheet-shaped member. Is pressure-welded onto the already laminated sheet-like member, and the central portion of the new sheet-like member is pressure-welded onto the already laminated sheet-like member, and the new sheet-like member is already laminated. A laminating method for laminating on a sheet-like member is provided.
Further, according to the present invention, in the laminating method in which a new sheet-like member is laminated on the already laminated sheet-like member, the new sheet-like member is aligned with the already laminated sheet-like member at a distance. The new sheet-like member is placed in a flat state by arranging the new sheet-like member and projecting the central portion of the new sheet-like member toward the already laminated sheet-like member while holding both side edges of the new sheet-like member by a clamp mechanism. The central part of the new sheet-like member is pressed against the already laminated sheet-like member, and the central part of the new sheet-like member is pressed against the already laminated sheet-like member. In this state, the new sheet is released by releasing the holding action of the new sheet-like member on the transport plate by this clamp mechanism and releasing the holding action of the already laminated sheet-like member by another clamping mechanism. A laminating method is provided in which the shaped members are laminated on a sheet-shaped member that has already been laminated.
Further, according to the present invention, in the laminating method in which a new sheet-like member is laminated on the already laminated sheet-like member, the new sheet-like member mounted on the flexible transport plate is already laminated. The new sheet-shaped member is deformed from the flat state to the curved state by arranging the sheet-shaped members aligned with each other at intervals and bending the transport plate from the flat state to the central portion of the new sheet-shaped member. Is pressure-welded onto the already laminated sheet-like member, and the central portion of the new sheet-like member is pressure-welded onto the already-laminated sheet-like member, and the new sheet-like member is flattened from a curved state. Provided is a laminating method in which an entire new sheet-like member is pressed into a laminated sheet-like member by deforming it into a state, whereby the new sheet-like member is laminated on the already laminated sheet-like member. Will be done.
Further, according to the present invention, in the laminating method in which a new sheet-like member is laminated on the already laminated sheet-like member, the new sheet-like member is aligned with the already laminated sheet-like member at a distance. The new sheet-like member is placed in a flat state by arranging the new sheet-like member and projecting the central portion of the new sheet-like member toward the already laminated sheet-like member while holding both side edges of the new sheet-like member by a clamp mechanism. The central part of the new sheet-like member is pressed against the already laminated sheet-like member, and the central part of the new sheet-like member is pressed against the already laminated sheet-like member. In this state, the holding action of the new sheet-like member on the transport plate by this clamp mechanism is released, the holding action of the already laminated sheet-like member by another clamp mechanism is released, and the new sheet-like member is released. By deforming the member from the curved state to the flat state, the entire new sheet-like member is pressed against the already laminated sheet-like member, and the entire new sheet-like member is placed on the already laminated sheet-like member. In the state of pressure contact, the new sheet-like member is held on the already laminated sheet-like member by this other clamp mechanism, whereby the new sheet-like member is laminated on the already laminated sheet-like member. A laminating method is provided.

The new sheet-like member can be accurately aligned and laminated on the already laminated sheet-like member without generating an extreme bending stress in the peripheral portion of the new sheet-like member.

FIG. 1 is an overall view of a plate transfer device and a jig transfer device. 2A, 2B, 2C and 2D are diagrams for explaining a unit battery and a sheet-shaped electrode. FIG. 3 is an enlarged side view of a part of the plate transfer device shown in FIG. FIG. 4 is a cross-sectional view of the mover. FIG. 5 is a perspective view of the transport plate support. FIG. 6 is a diagram showing a step of laminating sheet-shaped electrodes. FIG. 7 is a plan view illustrating the jig transfer device graphically. FIG. 8 is a view showing the back surface of the first embodiment of the transport plate support. FIG. 9 is a view showing the back surface of the first embodiment of the transport plate support. 10A, 10B and 10C are side views of the transport plate support as seen along arrow X in FIGS. 8 and 9. 11A and 11B are side sectional views of the transport plate support seen along the arrow Y in FIGS. 8 and 9. FIG. 12 is a perspective view illustrating the laminated jig. 13A, 13B and 13C are diagrams for explaining the operation of the clamp mechanism of the laminated jig. 14A, 14B and 14C are diagrams for explaining the laminating operation of the sheet-shaped electrodes in the first embodiment. 15A, 15B and 15C are diagrams for explaining the laminating operation of the sheet-shaped electrodes in the first embodiment. FIG. 16 is a view showing the back surface of the second embodiment of the transport plate support. FIG. 17 is a view showing the back surface of the second embodiment of the transport plate support. 18A and 18B are side views of the transport plate support as seen along arrow X in FIGS. 16 and 17. 19A and 19B are side views of the transport plate support as seen along arrow X in FIGS. 16 and 17. 20A, 20B and 20C are side views of the transport plate support along the arrow Y in FIGS. 16 and 17. 21A, 21B and 21C are cross-sectional views of the transport plate support seen along the arrow Z in FIGS. 16 and 17. 22A, 22B, and 22C are diagrams for explaining the laminating operation of the sheet-shaped electrodes in the second embodiment. 23A, 23B, and 23C are diagrams for explaining the stacking operation of the sheet-shaped electrodes in the second embodiment. FIG. 24 is a diagram for explaining the laminating operation of the sheet-shaped electrodes in the second embodiment.

For example, when manufacturing a battery to be mounted on a vehicle, a large number of sheet-shaped electrodes are first produced, and then an electrode laminate is formed by laminating the sheet-shaped electrodes, and a plurality of formed electrode laminates are formed. Batteries are manufactured by electrically connecting the electrodes in series or in parallel. The present invention relates to a sheet-like member laminating device and a laminating method that can be applied when forming an electrode laminate by laminating sheet-shaped electrodes. Hereinafter, an embodiment according to the present invention will be described by taking an example in which an electrode sheet-shaped electrode is used as the sheet-shaped member. Therefore, first, the sheet-shaped electrode used in the examples according to the present invention will be described. 2A and 2B are a plan view of a battery component manufactured by using the sheet-shaped electrode, that is, a unit battery, and a cross-sectional view of the unit battery as seen along the X-ray line of FIG. 2A. Is illustrated graphically. The thickness of the unit battery is 1 mm or less, and therefore, in FIG. 2B, the thickness of each layer is shown exaggerated considerably.

With reference to FIG. 2B, 2 is a positive electrode current collector layer, 3 is a positive electrode active material layer, 4 is a solid electrolyte layer, 5 is a negative electrode active material layer, and 6 is a negative electrode current collector layer. The positive electrode current collector layer 2 is formed of a conductive material, and in the embodiment according to the present invention, the positive electrode current collector layer 2 is formed of a metal foil for current collection, for example, an aluminum foil. Further, the positive electrode active material layer 3 is formed of a positive electrode active material that can occlude metal ions such as lithium ions, sodium ions, and calcium ions at the time of discharge and release them at the time of charging. Further, the solid electrolyte layer 4 is formed of a material that has conductivity to metal ions such as lithium ion, sodium ion, and calcium ion and can be used as a material for an all-solid-state battery.

On the other hand, the negative electrode active material layer 5 is formed of a negative electrode active material that can release metal ions such as lithium ions, sodium ions, and calcium ions at the time of discharge and occlude at the time of charging. Further, the negative electrode current collector layer 6 is formed of a conductive material, and in the embodiment according to the present invention, the negative electrode current collector layer 2 is formed of a metal foil for current collection, for example, a copper foil. Further, as can be seen from the above description, the battery manufactured in the examples according to the present invention is an all-solid-state battery, and in this case, the battery is preferably an all-solid-state lithium ion secondary battery.

The sheet-shaped electrode used in the embodiment according to the present invention has a rectangular planar shape similar to that shown in FIG. 2A, and has a cross-sectional structure shown in FIG. 2C or FIG. 2D. Note that FIGS. 2C and 2D show cross-sectional views at positions similar to the X-rays of FIG. 2A. In FIGS. 2C and 2D, as in FIG. 2B, 2 is a positive electrode current collector layer, 3 is a positive electrode active material layer, 4 is a solid electrolyte layer, 5 is a negative electrode active material layer, and 6 is a negative electrode current collector. Shows body layer. In the sheet-shaped electrode shown in FIG. 2C, the negative electrode current collector layer 6 is located at the center thereof, and the negative electrode active material layer 5, the solid electrolyte layer 4, and the negative electrode current collector layer 6 are directed upward from the negative electrode current collector layer 6. The positive electrode active material layer 3 and the positive electrode current collector layer 2 are sequentially formed, and the negative electrode active material layer 5, the solid electrolyte layer 4, and the positive electrode active material layer 3 are sequentially formed from the negative electrode current collector layer 6 downward. It is formed. In this case, in the embodiment according to the present invention, the negative electrode current collector layer 6 is formed of copper foil, and the positive electrode current collector layer 2 is formed of aluminum foil.

On the other hand, in the sheet-shaped electrode shown in FIG. 2D, the negative electrode current collector layer 6 is located at the center thereof, and the negative electrode active material layer 5 and the solid electrolyte are located in the vertical direction from the negative electrode current collector layer 6, respectively. The layer 4 and the positive electrode active material layer 3 are sequentially formed. That is, the sheet-shaped electrode shown in FIG. 2D does not have the positive electrode current collector layer 2. Even in the case shown in FIG. 2D, the negative electrode current collector layer 6 is formed of copper foil. In the embodiment according to the present invention, the sheet-shaped electrode having the cross-sectional shape shown in FIG. 2D is formed in advance, and as will be described later, the aluminum foil (as described later) is placed on the sheet-shaped electrode having the cross-sectional shape shown in FIG. The positive electrode current collector) is attached, and as a result, a sheet-shaped electrode having a cross-sectional shape shown in FIG. 2C, that is, a sheet-shaped electrode to which the aluminum foil 2 is attached is formed.

In the embodiment according to the present invention, the sheet-shaped electrode to which the aluminum foil 2 is attached is referred to as the sheet-shaped electrode 1. In the description of the examples according to the present invention, the sheet-shaped electrode having a cross-sectional shape shown in FIG. 2D to which the aluminum foil 2 is not attached is also referred to as the sheet-shaped electrode 1 when it is considered that there is no particular confusion. On the other hand, when it is preferable to distinguish between the sheet-shaped electrode 1 to which the aluminum foil 2 is attached and the sheet-shaped electrode 1 to which the aluminum foil 2 is not attached, the sheet-shaped electrode 1 to which the aluminum foil 2 is attached is preferable. Is referred to as a sheet-shaped electrode 1 with a positive electrode, and a sheet-shaped electrode to which the aluminum foil 2 is not attached is referred to as a sheet-shaped electrode 1 without a positive electrode.

The sheet-shaped electrode 1 shown in FIGS. 2C and 2D is an example, and the use of the sheet-shaped electrode 1 having various structures can be considered. For example, the negative electrode active material layer 5, the solid electrolyte layer 4, the positive electrode active material layer 3 and the positive electrode current collector layer 2 are formed on one side surface of the copper foil 6, or the negative electrode active material layer 5 and the solid electrolyte layer are formed. 4 and the positive electrode active material layer 3 are formed, or the negative electrode active material layer 5 and the solid electrolyte layer 4 are formed, or only the negative electrode active material layer 5 is formed, and the negative electrode is formed on the other side surface of the copper foil 6. The structure may be such that the active material layer 5 and the solid electrolyte layer 4 are formed, only the negative electrode active material layer 5 is formed, or nothing is formed. Further, instead of the copper foil 6, an aluminum foil forming the positive electrode current collector layer 2 is used, and the positive electrode active material layer 3, the solid electrolyte layer 4, and the negative negative material active material layer 5 are placed on one side surface of the aluminum foil 2. And the negative electrode current collector layer 6 is formed, or the positive electrode active material layer 3, the solid electrolyte layer 4 and the negative electrode active material layer 5 are formed, or the positive electrode active material layer 3 and the solid electrolyte layer 4 are formed, or Only the positive electrode active material layer 3 is formed, and the positive electrode active material layer 3, the solid electrolyte layer 4 and the negative electrode active material layer 5 are formed on the other side surface, or the positive electrode active material layer 3 and the solid electrolyte layer 4 are formed. It can be a structure in which only the positive electrode active material layer 3 is formed, or nothing is formed.

Therefore, in a comprehensive manner, in the present invention, the sheet-shaped electrode 1 is a current collecting metal leaf 2 or 6, a positive electrode active material layer 3 and a negative electrode active material formed on the current collecting metal foil 2 or 6. It will include at least one of the layers 5. Hereinafter, examples according to the present invention will be described by taking the case where the sheet-shaped electrode 1 has the structure shown in either FIG. 2C or FIG. 2D as an example.

Referring to FIG. 1, FIG. 1 shows a plate transfer device A, a jig transfer device B, and an operation control device C. The plate transfer device A is supplied with the sheet-shaped electrode 1 without a positive electrode having the cross-sectional shape shown in FIG. 2D at the mounting position indicated by the arrow in FIG. 1, and the sheet-shaped electrode 1 is laminated including the sheet-shaped electrode 1. The plate transport device A transports the body in the transport direction indicated by the arrow.

Next, this plate transfer device A will be described. FIG. 3 shows an enlarged side view of a part of the plate transfer device A shown in FIG. Referring to FIGS. 1 and 3, the plate transfer device A includes an oval rail 10 composed of a horizontal straight line portion 10a and a pair of semicircular portions 10b spaced vertically spaced apart in a vertical plane, and on the rail 10. It is provided with a plurality of movers 12 capable of traveling. FIG. 4 shows a cross-sectional view of the mover 12 as viewed along line IV-IV of FIG. As shown in FIG. 4, the mover 12 is attached to the mover 12 so as to be rotatable around the axis 13a, and a pair of guide rollers 13 (arranged forward and backward with respect to the traveling direction) to roll on the rail 10. A pair of guide rollers 14 (arranged in front and behind in the direction of travel) that are rotatably attached to the mover 12 around the axis 14a and roll on the rail 10 and the mover. A guide roller 15 that is rotatably attached to the 12 around the axis 15a and rolls on the rail 10 and a guide roller 16 that is rotatably attached to the mover 12 around the axis 16a and rolls on the rail 10. I have.

On the other hand, the mover 12 includes a pair of permanent magnets 17 and 18, and a stator 11 around which a coil is wound is arranged in the plate transport device A sandwiched between the permanent magnets 17 and 18. ing. A linear motor is formed by the stator 11 and the permanent magnets 17 and 18, that is, by the stator 11 and the mover 12. Therefore, in the plate transfer device A, the mover 12 of the linear motor is driven on the rail 10. The traveling speed of the mover 12 and the like are controlled by the operation control device C.

As shown in FIGS. 3 and 4, a transport plate support 19 that supports a rectangular transport plate 20 is mounted on the mover 12, and a sheet-shaped electrode 1 is mounted on the transport plate 20. Is placed. FIG. 5 shows a perspective view of the transport plate support 19 attached to the mover 12. Referring to FIG. 5, in the embodiment according to the present invention, the sheet-shaped electrode 1 mounted on the transport plate 20 is pressed onto the transport plate 20 to press the sheet-shaped electrode 1 on the transport plate 20 during transport. A clamp mechanism 25 including a plurality of clamps 21, 22, 23, 24 for holding the transfer plate 20 at the mounting position is attached. In the embodiment shown in FIG. 5, a pair of clamps 21 and 22 are attached to the front end portion of the transport plate 20 located in front of the traveling direction at intervals, and the transport plate located rearward in the traveling direction. A pair of clamps 23 and 24 are attached to the rear end of 20 at intervals.

Next, the step of laminating the sheet-shaped electrodes will be described with reference to FIG. FIG. 6 graphically shows the laminating process of the sheet-shaped electrodes. FIG. 6 shows a sheet-shaped electrode 1 mounted on the transport plate 20 and a clamp attached to the transport plate support 19. 21, 22, 23, 24 are illustrated graphically. However, in FIG. 6, the transport plate 20 is omitted. Note that FIG. 6 shows various processes performed when the sheet-shaped electrode 1 is transported by the plate transport device A.

In the embodiment according to the present invention, the negative electrode active material layer, the solid electrolyte layer, and the positive electrode active material layer are sequentially applied on both side surfaces of the elongated copper foil at intervals in the longitudinal direction of the copper foil so as to be overlapped with each other. By cutting this copper foil at predetermined lengths, a positive electrode-less sheet-shaped electrode 1 having a cross-sectional shape shown in FIG. 2D is produced. The sheet-shaped electrode 1 without a positive electrode is stacked and stored on a storage table. Q in FIG. 6 shows the sheet-shaped electrodes 1 without a positive electrode stacked on the storage table. Sheet electrode 1 are stacked in this storage block, by a not-shown transfer device in the mounting position indicated by the arrow in FIG. 1, as indicated by the arrows in FIG. 6, sequentially one by one, the plate transfer apparatus A It is placed on the transport plate 20 at the upper horizontal straight rail portion 10a.

The sheet-shaped electrode 1 placed on the transport plate 20 in the upper horizontal straight rail portion 10a first forms a connecting electrode tab while moving along the horizontal straight portion 10a of the plate transport device A. A tab cutting process is performed at the end of the copper foil 6 for the purpose, and then an end insulation process for applying an insulating material to a part of the copper foil 6 to prevent a short circuit with the aluminum (positive electrode) foil is performed. Will be done. Next, an electrode inspection is performed to inspect whether or not the connecting electrode tab is accurately formed on the sheet-shaped electrode 1 without a positive electrode and whether or not the insulating material is accurately applied. Next, a positive electrode foil affixing process is performed in which the aluminum (positive electrode) foil 2 is attached onto the sheet-shaped electrode 1 using an adhesive. When this positive electrode foil affixing process is performed, the sheet-shaped electrode 1 becomes a sheet-shaped electrode with a positive electrode having a cross-sectional shape shown in FIG. 2C. Next, a foil sticking inspection is performed to inspect whether or not the aluminum (positive electrode) foil 2 is properly stuck on the sheet-shaped electrode 1. Next, when the sheet-shaped electrodes 1 with positive electrodes 1 are laminated, a slip-prevention coating treatment is performed in which an adhesive is applied onto the aluminum (positive electrode) foil 2 so that the stacked sheet-shaped electrodes 1 do not shift.

Next, when the transport plate 20 reaches the semicircular rail portion 10b of the plate transport device A and begins to travel along the semicircular rail portion 10b, the transport plate 20 begins to turn upside down as shown in FIG. When the transfer plate 20 reaches the lower end of the semicircular rail portion 10b of the plate transfer device A, the transfer plate 20 is completely turned upside down. In the embodiment according to the present invention, the sheet-shaped electrode 1 with a positive electrode in which the sheet-shaped electrode 1 with a positive electrode placed on the transport plate 20 is laminated on the laminating jig 80 in the state where the transport plate 20 is turned upside down in this way. Laminating action is performed. When the sheet-shaped electrode 1 with a positive electrode is laminated, the sheet-shaped electrode 1 with a positive electrode is removed from the transport plate 20 and the transport plate 20 is emptied. The empty transport plate 20 is sequentially moved to the mounting position shown in FIG.

As described above, in the embodiment according to the present invention, the sheet-shaped electrode 1 with a positive electrode placed on the transport plate 20 is laminated on the laminating jig 80 in a state where the transport plate 20 is turned upside down. The laminating action of 1 is performed. At this time, as shown in FIG. 6, the laminated jig 80 is conveyed so that the upper surface of the laminated jig 80 faces the sheet-shaped electrode 1 placed on the conveying plate 20. In this case, in the embodiment according to the present invention, since the laminating action is performed while moving the transport plate 20 in the traveling direction, the stacking action is performed on the sheet-shaped electrode 1 placed on the transport plate 20 while the laminating action is performed. The laminated jig 80 is conveyed so that the upper surfaces of the jig 80 continue to face each other. The structure of the laminated jig 80 will be described later.

The laminated jig 80 is conveyed by the jig transfer device B, and therefore, the outline of the jig transfer device B will be described next. FIG. 7 is a plan view graphically depicting the jig transfer device B shown in FIG. 1, and the plate transfer device A is shown by a chain line in FIG. 7. Referring to FIGS. 1 and 7, the jig transfer device B is a small version of the plate transfer device A and has the same function as the plate transfer device A. That is, the jig transfer device B includes an oval rail 30 composed of a pair of straight portions and a pair of semicircular portions arranged in parallel, and a mover 31 of a linear motor traveling on the rail 30. The mover 31 has a structure similar to that of the mover 12 shown in FIG. In the jig transfer device B, the end of the transfer table 32 extending horizontally outward from the oval rail 30 is fixed to the mover 31, and the laminated jig 80 is mounted on the transfer table 32. The jig.

In the embodiment according to the present invention, the upper surface of the laminating jig 80 can continue to face the sheet-shaped electrode 1 placed on the transport plate 20 while the laminating action is being performed, that is, the laminating action is performed. The jig transfer device B is arranged so that the laminated jig 80 mounted on the transfer table 32 can continue to move directly under the plate transfer device A during the process. Further, in the embodiment according to the present invention, the transfer plate 20 and the transfer table are provided so that the upper surface of the laminated jig 80 continues to face the sheet-shaped electrode 1 placed on the transfer plate 20 while the lamination action is being performed. 32 is moved in synchronization with it.

In the example shown in FIGS. 1 and 7, three transport bases 32 are provided, and these transport bases 32 are moved by the mover 31 in the direction of the arrow in FIG. 7. In FIG. 7, for example, the laminating work of the sheet-shaped electrode 1 mounted on a certain transport plate 20 on the laminating jig 80 is performed on the laminating jig 80 on the conveying table 32 indicated by AX. Occasionally, the laminating work of the sheet-shaped electrode 1 on the laminating jig 80 from the conveying plate 20 following the conveying plate 20 is performed on the laminating jig 80 on the conveying table 32 represented by BX. On the other hand, the laminated jig 80 on the transport table 32 represented by CX indicates the laminated jig 80 in which the laminating work of the sheet-shaped electrode 1 on the laminated jig 40 has already been completed, and the transport table 32 is on the laminated jig 80. When the laminating work of the sheet-shaped electrode 1 is completed, the sheet-shaped electrodes 1 are moved at a high speed to the leading transport table 32, behind the transport table 32 shown by BX in FIG. 7.

When a predetermined number of sheet-shaped electrodes 1 with positive electrodes are laminated in the laminated jig 80, the laminated jig 80 holding the predetermined number of sheet-shaped electrodes 1 with positive electrodes is removed from the jig transfer device B. Then, the empty laminated jig 80 is placed on the transport table 32. The laminated jig 80 removed from the jig transporting device B is carried to a manufacturing device for the electrode laminate. In this device for manufacturing the electrode laminate, first, the sheet-shaped electrode 1 with a positive electrode laminated in the laminated jig 80 is compressed, and then the resin is applied to the side surface of the compressed sheet-shaped electrode 1 with a positive electrode. Then, the aluminum (positive electrode) foil 2 is attached onto the outermost sheet-shaped electrode 1, and then the power extraction terminal is bonded to the connecting electrode tab of the sheet-shaped electrode 1, whereby the sheet-shaped electrode 1 is attached. An electrode laminate is produced. The electrode laminate thus formed is, for example, covered in a bag shape by a laminate film, and a plurality of electrode laminates covered in a bag shape by the laminate film are electrically connected in series or in parallel. For example, a battery mounted on a vehicle is formed.

Next, a first embodiment of the transport plate support 19 shown in FIGS. 8 to 11B will be described. 8 and 9 are perspective views of the back surface of the transport plate support 19, that is, the mover 12 reaches the lower end of the semicircular rail portion 10b of the plate transport device A, and the transport plate 20 is turned upside down. The perspective view of the transport plate support 19 at the time of this time is shown. Note that FIG. 8 shows the transport plate support tool 19 when the sheet-shaped electrode 1 is transported toward the laminated portion before the laminating work of the sheet-shaped electrode 1 on the laminating jig 80 is started. FIG. 9 shows a transport plate support tool 19 when the sheet-shaped electrode 1 is laminated on the laminated jig 80 in the laminated portion. Further, FIG. 10A shows a side view of the transport plate support 19 as viewed along the arrow X of FIG. 8 when the transport plate support 19 is in the state shown in FIG. 8, and FIG. 11A shows a side view of the transport plate support 19. A cross-sectional view of the transport plate support 19 as seen along the arrow Y in FIG. 8 when the support 19 is in the state shown in FIG. 8 is shown.

First, the structure of the first embodiment of the transport plate support 19 will be described with reference to FIGS. 8, 10A and 11A. With reference to FIGS. 8, 10A and 11A, the transport plate support 19 includes a base 40 that supports the entire transport plate support 19. The base 40 has a flat top 40a and a pair of mounting flanges 40b formed on both sides of the flat top 40a, and these pair of mounting flanges 40b are fixed to the top of the mover 12. To. Therefore, the transport plate support 19 is mounted on the top of the mover 12 via the base 40.

The transport plate 20 has a rectangular contour shape, and as shown in FIGS. 8, 10A and 11A, the transport plate 20 is placed on the back surface of the transport plate 20 along both side edges of the transport plate 20. A pair of end support rods 26, 27 extending over the entire length of the transport plate 20 in the longitudinal direction of 20 are fixed. Further, on the back surface of the transport plate 20, at the central portion of the transport plate 20 between the both side edges of the transport plate 20, the transport is performed in the same direction as the end support rods 26 and 27, that is, in the longitudinal direction of the transport plate 20. A central support rod 28 extending over the entire length of the plate 20 is fixed.

As shown in FIG. 8, on the base 40, a pair of urging mechanisms 41 arranged in parallel to support the transport plate 20 and to urge both side edges of the transport plate 20 in directions away from each other. Each urging mechanism 41 is attached and is fixed on the outer surface of the flat top 40a of the base 40, respectively, as shown in FIGS. 8 and 11A, and in the lateral direction of the transport plate 20. It is provided with a transport plate support beam 42 extending to. Each transport plate support beam 42 is provided with swing arms 45, 46 rotatably attached to both ends of the transport plate support beam 42 by rotation shafts 43, 44, respectively. The lower ends of the 45 and 46 are rotatably connected to the fixing pieces 47 (FIG. 8) fixed to the corresponding end support rods 26 and 27 by the rotating shafts 48 and 49, respectively.

On the other hand, between the transfer plate support beam 42 and the swing arms 45, 46, the pressing pins 50, 51 seated in the hemispherical recesses on the inner side surfaces of the swing arms 45, 46 are outward. The compression springs 52 and 53 that press toward are inserted. Therefore, both ends of the transport plate 20 are always urged toward the outside and away from each other by the spring force of the compression springs 52 and 53. As described above, since the compression springs 52 and 53 always exert an outward pulling force on both ends of the transport plate 20, the transport plate 20 is usually as shown in FIGS. 8 and 11A. In addition, the transport plate 20 is held in a flat state. That is, as shown in FIG. 1, the transport plate 20 is moved along the horizontal straight line portion 10a of the plate transport device A in a flat state, and then the transport plate 20 is in a flat state and is semicircular. Along the rail portion 10b, the transport plate 20 is turned upside down toward the laminated portion.

By the way, in the laminated portion, when the new sheet-shaped electrode 1 mounted on the transport plate 20 is laminated in the stacking jig 80, the new sheet-shaped electrode 1 mounted on the transport plate 20 A new sheet-shaped electrode 1 mounted on the transport plate 20 is already laminated in the laminated jig 80 so that the sheet-like electrode 1 is accurately aligned with the sheet-shaped electrode already laminated in the laminated jig 80. It is necessary to stack it on the sheet-shaped electrode. That is, when the new sheet-shaped electrode 1 mounted on the transport plate 20 is laminated in the laminated jig 80, the new sheet-shaped electrode 1 mounted on the transport plate 20 is placed in the laminated jig 80. It is necessary to laminate the sheet-shaped electrodes already laminated in the laminated jig 80 so as not to cause a deviation from the sheet-shaped electrodes already laminated.

Therefore, in the embodiment according to the present invention, when the new sheet-shaped electrode 1 mounted on the transport plate 20 is laminated on the sheet-shaped electrode already laminated in the laminating jig 80, the transport plate 20 is used. The new sheet-shaped electrode 1 mounted on the top is curved so that the central portion of the new sheet-shaped electrode 1 protrudes toward the laminated jig 80, and the new sheet-shaped electrode 1 is mounted on the transport plate 20. The protruding tip of the electrode 1 is pressed onto the sheet-shaped electrode already laminated in the laminated jig 80, and a new sheet-shaped electrode 1 placed on the transport plate 20 is placed in the laminated jig 80. A state in which no deviation occurs with respect to the already laminated sheet-shaped electrodes is created, and while maintaining this state, a new laminating work of the sheet-shaped electrodes 1 is performed in the laminating jig 80.

In the embodiment according to the present invention, when the new sheet-shaped electrode 1 mounted on the transport plate 20 is laminated on the sheet-shaped electrode already laminated in the laminating jig 80, it is placed on the transport plate 20. A transport plate 20 located in the middle of both side edges of the transport plate 20 so that the newly placed sheet-shaped electrode 1 is curved so that the central portion of the new sheet-shaped electrode 1 protrudes toward the laminated jig 80. A pressing mechanism 55 is provided in the transfer plate support 19 for pressing the central portion of the transfer plate 20 in a direction perpendicular to the surface of the transfer plate 20 to deform the transfer plate 20 from a flat state to a curved state.

Next, the pressing mechanism 55 will be described with reference to FIGS. 8 and 10A. As shown in FIGS. 8 and 10A, the pressing mechanism 55 is a pair of hollow cylindrical rod guides fitted in the flat top 40a of the base 40 at intervals in the longitudinal direction of the transport plate 20. 56, 57, rods 58, 59 slidably inserted into the rod guides 56, 57, a U-shaped connecting arm 60 connected to one end of these rods 58, 59, and a connecting arm 60. Rollers 61 and 62 are rotatably attached to both ends of the rods, and the other ends of the rods 58 and 59 are attached to a central support rod 28 fixed on the back surface of the transport plate 20. It is connected.

In FIG. 8, when the connecting arm 60 is pushed down, the rods 58 and 59 are pushed down, and when the rods 58 and 59 are pushed down, the central support rod 28 fixed on the back surface of the transport plate 20. Is pushed down. The state of the transport plate 20 at this time is shown in FIGS. 9, 10B and 11B. That is, as shown in FIGS. 8 and 11A, the end support rods 26 and 27 fixed to both ends of the transport plate 20 are connected to the swing arms 45 and 46, and thus the state shown in FIG. 10A. Therefore, when the rods 58 and 59 are pushed downward, the transport plate 20 is deformed from a flat state to a curved state as shown in FIGS. 10B and 11B. At this time, since the distance between the end support rods 26 and 27 is shortened, the swing arm 45 rotates slightly clockwise in FIGS. 11A and 11B against the spring force of the compression spring 52. swing arm 46 against the spring force of the compression spring 53, pivots a little in the counter-clockwise in FIGS. 11A and 11B.

When the rods 58 and 59 are pushed downward in this way, the transport plate 20 is deformed from a flat state to a curved state against the spring force of the compression springs 52 and 53. Therefore, when the pushed-down rods 58 and 59 are raised, the transport plate 20 returns from the curved state to the flat state due to the spring force of the compression springs 52 and 53. The pushing down action and raising work of the rods 58 and 59 are performed by engaging the rollers 61 and 62 with the fixed cam while the mover 12 is being moved along the rail 10. Therefore, in the embodiment according to the present invention, as the mover 12 moves along the rail 10, the transport plate 20 is deformed from a flat state to a curved state and from a curved state to a flat state. Will be.

Next, the clamp mechanism 25 for holding the sheet-shaped electrode 1 placed on the transport plate 20 on the transport plate 20 will be described. As described above with reference to FIG. 5, in the embodiment according to the present invention, the clamp mechanism 25 is composed of a plurality of clamps 21, 22, 23, 24. These clamps 21, 22, 23, 24 have the same L-shape, and as shown in FIGS. 8 and 10A, each clamp 21, 22, 23, 24 is on the surface of the transport plate 20. It has a pressing portion 70 extending to. A pair of brackets 71 arranged at intervals from each other are fixed on the end support rods 26 and 27, and clamps 21 and 22 are attached to the rotating shafts 72 supported by the brackets 71, respectively. The central portions of 23 and 24 are rotatably attached. Further, rollers 73 are rotatably attached to the ends of the clamps 21, 22, 23, 24 located on the opposite side of the pressing portion 70, respectively.

As can be seen from FIGS. 8 and 10A, the clamps 21 and 22 and the clamps 23 and 24 are arranged symmetrically with respect to the longitudinal axis of the transport plate 20. In FIG. 10A, a coil spring for urging the clamps 21 and 22 clockwise is mounted on the rotation shaft 72 of the clamps 21 and 22, and the spring force of the coil spring is used to force the clamps 21 and 22. The pressing portion 70 presses the peripheral portion of the sheet-shaped electrode 1 placed on the transport plate 20 onto the transport plate 20. Similarly, in FIG. 10A, a coil spring for urging the clamps 23 and 24 counterclockwise is mounted on the rotation shaft 72 of the clamps 23 and 24, and the clamp is clamped by the spring force of the coil spring. The peripheral portion of the sheet-shaped electrode 1 placed on the transport plate 20 is pressed onto the transport plate 20 by the pressing portions 70 of 23 and 24.

As described above, when the connecting arm 60 is pushed down, the transport plate 20 is deformed from a flat state to a curved state, as shown in FIGS. 10B and 11B. When the transport plate 20 is deformed from the flat state to the curved state, the end support rods 26 and 27 change from the horizontal state shown in FIGS. 10A and 11A to the inclined state shown in FIGS. 10B and 11B. To do. When the end support rods 26 and 27 change from the horizontal state to the inclined state, the clamps 21, 22, 23 and 24 are also peripheral portions of the sheet-shaped electrode 1 placed on the transport plate 20 by the pressing portion 70. Is held down on the transport plate 20, and is tilted together with the end support rods 26 and 27. Therefore, even when the transport plate 20 is deformed from a flat state to a curved state, the sheet-shaped electrode 1 placed on the transport plate 20 is pressed by the pressing portions 70 of the clamps 21, 22, 23, and 24. It will continue to be pressed onto the transport plate 20.

On the other hand, when the pressing action of the sheet-shaped electrode 1 on the transport plate 20 by the pressing portions 70 of the clamps 21, 22, 23, 24 is released, as shown in FIG. 10C, the clamp 22 is a coil spring. It is rotated counterclockwise against the spring force, and the clamp 24 is rotated clockwise against the spring force of the coil spring. At this time, although not shown in FIG. 10C, the clamp 21 is also rotated counterclockwise against the spring force of the coil spring, and the clamp 23 is also clocked against the spring force of the coil spring. It can be rotated around. The rotation work of these clamps 21, 22, 23, 24 is performed by the roller 73 engaging with the fixed cam while the mover 12 is being moved along the rail 10.

Next, the laminated jig 80 will be described with reference to FIG. FIG. 12 shows a perspective view of the laminated jig 80 graphically represented. Referring to FIG. 12, the laminated jig 80 includes a base 81, a pandagraph type elevating mechanism 82 mounted on the base 81, a bottom plate 83 supported by the pandagraph type elevating mechanism 82, and a bottom plate 83. It includes a clamp rod 85 provided on one side and having three clamps 84, and a clamp rod 87 provided on the other side of the bottom plate 83 and having three clamps 86. The bottom plate 43 is constantly urged upward by a spring-loaded pandagraph type elevating mechanism 82.

On the other hand, the clamp rod 85 and the clamp rod 87 have symmetrical shapes with respect to the longitudinal axis of the bottom plate 83, and the clamp mechanism for operating the clamp rod 85 and the clamp rod 87 also has a shape with respect to the longitudinal axis of the bottom plate 83. It has a symmetrical structure. Therefore, hereinafter, with reference to FIGS. 12 and 13A to 13C, only the structure of the clamp mechanism for operating the clamp rod 85 and the clamp rod 85 will be described, and the clamp rod 87 and the clamp rod 87 will be operated. The description of the structure of the clamp mechanism will be omitted. It should be noted that FIGS. 13A to 13C graphically show the operation of the clamp mechanism for operating the clamp rod 85, and in FIGS. 13A to 13C, a part of the bottom plate 83 and a layer on the bottom plate 83 are laminated. A part of the plurality of sheet-shaped electrodes 1 is drawn.

Referring to FIG. 13A, the clamp mechanism of the laminated jig 80 includes a tilt mechanism 88 for tilting the clamp rod 85 of the clamp 84 and a slide mechanism 89 for moving the chilled mechanism 88 up and down. The slide mechanism 89 urges the slider 90, which is slidably supported in the laminated jig 80 in the vertical direction, the roller 91, which is rotatably attached to the lower end of the slider 90, and the slider 90 upward. The compression spring 92, the cam shaft 93 rotatably supported in the laminated jig 80, the cam 94 fixed to the cam shaft 93 and engaged with the roller 91, and fixed to the outer end of the cam shaft 93. The arm 95 is provided with a roller 96 rotatably attached to the tip of the arm 95. When the cam shaft 93 is rotated clockwise in FIG. 13A, the slider 90 is raised by the spring force of the compression spring 92 as shown in FIG. 13B. That is, in the slide mechanism 89, the slider 90 is moved up and down by rotating the cam shaft 93.

On the other hand, the tilt mechanism 88 has a tilt head 98 that supports the clamp rod 85 and is rotatably attached to the slider 90 by the rotation shaft 97, a roller 99 that is rotatably attached to the tilt head 98, and the slider 90. A cam shaft 100 rotatably supported by the cam shaft 100, a cam 101 fixed to the cam shaft 100 and engaged with the roller 99, an arm 102 fixed to the outer end of the cam shaft 100, and a tip of the arm 102. A roller 103 rotatably attached to the portion is provided. As shown in FIGS. 13A or 13C, the position of the tilt head 98 when the clamp 84 is located above the sheet-shaped electrode 1 placed on the transport plate 20 is hereinafter referred to as an upright position. Refer to. On the other hand, when the cam shaft 100 is rotated clockwise in FIG. 13A, as shown in FIG. 13B, the clamp 84 deviates from the upper region of the sheet-shaped electrode 1 placed on the transport plate 20. The tilt head 98 is tilted.

FIG. 13A shows a case where the tilt head 98 is in an upright position and the sheet-shaped electrode 1 laminated on the bottom plate 83 is pressed by the clamp 84. That is, at this time, the sheet-shaped electrode 1 laminated on the bottom plate 83 is urged upward by the pandagraph type elevating mechanism 82, and at this time, the sheet-shaped electrode 1 to be raised is pressed by the clamp 84. It is attached. When the pressing action of the sheet-shaped electrode 1 laminated on the bottom plate 83 by the clamp 84 is released, both the cam shaft 93 and the cam shaft 100 are rotated clockwise (at this time, the sheet-shaped electrode 1 laminated on the bottom plate 83). The electrode 1 is pressed downward), whereby the tilt head 98 is raised and the clamp 84 is above the sheet electrode 1 laminated on the bottom plate 83, as shown in FIG. 13B. The tilt head 98 is tilted in a direction outside the region. (At this time, a new sheet-shaped electrode 1 is laminated on the sheet-shaped electrode 1 laminated on the bottom plate 83.) Then, as shown in FIG. 13C, the tilt head 98 is returned to the upright position, and then the tilt head 98 is returned to the upright position. When the tilt head 98 is lowered, the sheet-shaped electrode 1 laminated on the bottom plate 83 is pressed by the clamp 84. The rotation work of the cam shaft 93 and the cam shaft 100 is such that the roller 96 and the roller 103 engage with the fixed cam 104 shown in FIG. 12 when the mover 12 is moved along the rail 10. Is executed by.

Next, a method of laminating the sheet-shaped electrodes 1 in the first embodiment of the transport plate support 19 will be described with reference to FIGS. 14A to 15C. The laminating action of the sheet-shaped electrode 1 is performed while the transport plate support 19 and the laminating jig 80 move in synchronization with each other. FIG. 14A shows a case where the new sheet-shaped electrode 1 placed on the transport plate 20 of the transport plate support 19 is aligned with the sheet-shaped electrode 1 laminated in the laminated jig 80. .. When the new sheet-shaped electrode 1 placed on the transport plate 20 is aligned with the sheet-shaped electrode 1 stacked in the laminated jig 80, the pressing mechanism 55 causes the central support rod 28 of the transport plate 20 to be aligned. Is pushed down. As a result, as shown in FIG. 14B, the transport plate 20 is deformed from a flat state to a curved state, and the central portion of the new sheet-shaped electrode 1 placed on the transport plate 20 is placed in the laminated jig 80. It is pressure-welded onto the laminated sheet-shaped electrodes 1.

Next, as shown in FIG. 14C, the central portion of the new sheet-shaped electrode 1 placed on the transport plate 20 is pressed against the sheet-shaped electrode 1 laminated in the laminated jig 80. , The pressing action of the sheet-shaped electrode 1 in the laminated jig 80 by the clamps 84 and 86 is released, and the pressing action of the new sheet-shaped electrode 1 by the clamps 22 and 24 of the transport plate support 19 is released. As a result, both side portions of the new sheet-shaped electrode 1 fall toward the sheet-shaped electrode 1 laminated in the laminated jig 80. When both side portions of the new sheet-shaped electrode 1 fall toward the sheet-shaped electrode 1 laminated in the laminated jig 80, the clamps 84 and 86 of the laminated jig 80 are brought into an upright state as shown in FIG. 13C. To. This time is shown in FIG. 15A.

Next, the clamps 84 and 86 of the laminated jig 80 are lowered, whereby the sheet-shaped electrode 1 laminated in the laminated jig 80 is pressed by the clamps 84 and 86. When the sheet-shaped electrodes 1 laminated in the laminated jig 80 are pressed by the clamps 84 and 86, the downward action of the pressing mechanism 55 on the central support rod 28 of the transport plate 20 is released. As a result, the central support rod 28 of the transport plate 20 moves upward, and as a result, the transport plate 20 returns from the curved state to the flat state as shown in FIG. 15C. The transport plate support 19 is then returned by the mover 12 to the mounting position shown in FIG.

Next, a second embodiment of the transport plate support 19 shown in FIGS. 16 to 24 will be described. 16 and 17, respectively, are perspective views of the back surface of the transport plate support 19, that is, the mover 12 reaches the lower end of the semicircular rail portion 10b of the plate transport device A, respectively. The perspective view of the transport plate support 19 when the transport plate 20 is turned upside down is shown. Note that FIG. 16 shows a transport plate support 19 before the start of laminating work of the sheet-shaped electrode 1 on the laminating jig 40 and when the sheet-shaped electrode 1 is being transported toward the laminated portion. FIG. 17 shows a transport plate support 19 when the sheet-shaped electrode 1 is laminated on the laminated jig 40 in the laminated portion. Further, FIG. 18A shows a side view of the transport plate support 19 as viewed along the arrow X of FIG. 16 when the transport plate support 19 is in the state shown in FIG. 16, and FIG. 20A shows a side view of the transport plate support 19. A cross-sectional view of the transport plate support 19 as viewed along the arrow Y of FIG. 16 when the support 19 is in the state shown in FIG. 16 is shown, and FIG. 21A shows the transport plate support 19 shown in FIG. A cross-sectional view of the transport plate support 19 as seen along the arrow Z in FIG. 16 is shown.

First, the structure of the second embodiment of the transport plate support 19 will be described with reference to FIGS. 16, 18A, 20A, and 21A. With reference to FIGS. 16, 18A, 20A and 21A, also in this second embodiment, the transport plate support 19 includes a base 40 for supporting the entire transport plate support 19. .. The base 40 has a flat top 40a and a pair of mounting flanges 40b formed on both sides of the flat top 40a, and these pair of mounting flanges 40b are fixed to the top of the mover 12. To. Therefore, also in this second embodiment, the transport plate support 19 is attached to the top of the mover 12 via the base 40.

The difference between the first embodiment of the transport plate support 19 and the second embodiment of the transport plate support 19 is that in the first embodiment, the entire transport plate support 19 is fixedly supported on the base 40. On the other hand, in the second embodiment, the entire transport plate support 19 is not fixedly supported on the base 40, and the entire transport plate support 19 is transported so as to be able to be separated from the base 40. The plate support 19 is supported on the base 40. In this case, in this second embodiment, the entire transport plate support 19 is fixedly supported on the movable substrate 150, and the entire transport plate support 19 can be separated from the base 40. The movable substrate 150 is movably supported by the base 40.

As will be described later, the laminating method is slightly different between the first embodiment and the second embodiment. On the other hand, in the first embodiment, the entire transport plate support 19 is fixedly supported on the base 40, and in the second embodiment, the entire transport plate support 19 is fixedly supported on the movable substrate 150. Except for the above, the structure of the first embodiment of the transport plate support 19 and the structure of the second embodiment of the transport plate support 19 are almost the same. Therefore, the structure of the second embodiment of the transport plate support 19 will be briefly described, and in the second embodiment, the same components as those in the first embodiment will have the same reference numerals as those in the first embodiment. Indicated by.

By the way, as shown in FIGS. 16, 18A and 20A, also in this second embodiment, the transport plate is placed on the back surface of the rectangular transport plate 20 along both side edges of the transport plate 20. A pair of end support rods 26, 27 extending in the longitudinal direction of the transport plate 20 over the entire length of the transport plate 20 are fixed, and a transport plate is located at the center of the transport plate 20 between both side edges of the transport plate 20. A central support rod 28 extending over the entire length of the transport plate 20 in the longitudinal direction of 20 is fixed. On the other hand, the movable substrate 150 that supports the transport plate support 19 is formed of a rectangular flat plate, and the movable substrate 150 is a base as shown in FIGS. 16, 18A, 20A, and 21A. It extends parallel to the flat top 40a at intervals from the flat top 40a of the pedestal 40.

As shown in FIG. 16, on the back surface of the movable substrate 150, a pair of biases arranged in parallel to support the transport plate 20 and to bias both side edges of the transport plate 20 in a direction away from each other. A mechanism 41 is attached, and each urging mechanism 41 is fixed on the back surface of the movable substrate 150 and is a transport plate support extending in the lateral direction of the transport plate 20, as shown in FIGS. 16 and 20A, respectively. It includes a beam 42. Similar to the first embodiment, each transport plate support beam 42 includes swing arms 45, 46 rotatably attached to both ends of the transport plate support beam 42 by rotation shafts 43, 44, respectively. The lower ends of these swing arms 45 and 46 are rotatably connected to the fixing pieces 47 (FIG. 16) fixed to the corresponding end support rods 26 and 27, respectively, by the rotation shafts 48 and 49. Will be done.

On the other hand, between the transfer plate support beam 42 and the swing arms 45, 46, as in the first embodiment, the pressure is seated in the hemispherical recess on the inner surface of the swing arms 45, 46. Compression springs 52 and 53 that press the pins 50 and 51 outward are inserted. Therefore, both ends of the transport plate 20 are always urged toward the outside and away from each other by the spring force of the compression springs 52 and 53. On the other hand, as shown in FIGS. 16 and 21A, a pair of hollow cylindrical rod guides 151 and 152 are fitted to the flat top 40a of the base 40 at intervals, and these rod guides 151 are fitted. Guide rods 153 and 154 are slidably inserted into each of the 152 and 152, respectively. As shown in FIG. 21A, the lower ends of the guide rods 153 and 154 are fixed to the movable substrate 150, so that the movable substrate 150 moves up and down with respect to the base 40 while being guided by the guide rods 153 and 154. It is movable.

As shown in FIGS. 16 and 21A, an anchor rod 155 extending through the flat top 40a of the movable substrate 150 and the base 40 is provided between the guide rods 153 and 154. The lower end of the anchor rod 155 is hooked to the movable substrate 150, and the compression spring 157 is between the upper end of the anchor rod 155 and the spring supporting sleeve 156 fitted to the flat top 40a of the base 40. Is inserted. Due to the spring force of the compression spring 157, the movable substrate 150 is usually placed on the flat top 40a of the base 40 via the transport plate support beam 42 fixed on the movable substrate 150, as shown in FIG. 21A. I'm seated in. That is, the movable substrate 150 is normally coupled to the base 40, and therefore the transport plate support 19 is normally coupled to the base 40.

On the other hand, also in this second embodiment, when the new sheet-shaped electrode 1 mounted on the transport plate 20 is laminated on the sheet-shaped electrode already laminated in the laminating jig 80, the transport plate 20 is used. The new sheet-shaped electrode 1 mounted on the top is located in the middle of both side edges of the transport plate 20 so that the central portion of the new sheet-shaped electrode 1 is curved so as to protrude toward the laminated jig 80. A pressing mechanism 55 that presses the central portion of the transport plate 20 in a direction perpendicular to the surface of the transport plate 20 to deform the transport plate 20 from a flat state to a curved state is provided in the transport plate support 19.

As shown in FIGS. 16, 18A and 21A, the pressing mechanism 55 includes a pair of hollow cylindrical rod guides 56, which are fitted in the movable substrate 150 at intervals in the longitudinal direction of the transport plate 20. 57, rods 58 and 59 slidably inserted into the rod guides 56 and 57, a U-shaped connecting arm 60 connected to one end of these rods 58 and 59, and both ends of the connecting arm 60. The portions are provided with rollers 61 and 62 rotatably attached to the portions, and the other ends of the rods 58 and 59 are connected to a central support rod 28 fixed on the back surface of the transport plate 20. To. Note that the rollers 61 and 62 are omitted in FIGS. 21A to 21C.

In FIG. 16, when the connecting arm 60 is pushed down, the rods 58 and 59 are pushed down and the rods 58 and 59 are pushed down, as in the first embodiment, on the back surface of the transport plate 20. The fixed central support rod 28 is pushed down. When the rods 58 and 59 are pushed downward in this way, the transport plate 20 is deformed from a flat state to a curved state against the spring force of the compression springs 52 and 53. The state of the transport plate 20 at this time is shown in FIGS. 17, 18B, 20B and 21B. On the other hand, when the pushed-down rods 58 and 59 are raised, the transport plate 20 returns from the curved state to the flat state due to the spring force of the compression springs 52 and 53. The pushing down action and the raising work of the rods 58 and 59 are such that the rollers 61 and 62 engage with the fixed cam when the mover 12 is moved along the rail 10 as in the first embodiment. Is executed by.

On the other hand, also in this second embodiment, the clamps 21 and 22 having the same structure and the same function as those of the first embodiment in order to hold the sheet-shaped electrode 1 placed on the transport plate 20 on the transport plate 20. , 23, 24 are used as the clamp mechanism 25. Therefore, in the second embodiment as well, as shown in FIGS. 16, 17, 18A and 18B, the clamps 21, 22, 23 are provided by the spring force of the coil spring, as in the first embodiment. , 24, the peripheral portion of the sheet-shaped electrode 1 placed on the transport plate 20 is pressed onto the transport plate 20 by the pressing portion 70. On the other hand, when the pressing action of the sheet-shaped electrode 1 on the transport plate 20 by the pressing portions 70 of the clamps 21, 22, 23, 24 is released, as shown in FIG. 19A, as in the first embodiment, The clamps 21 and 22 are rotated counterclockwise against the spring force of the coil spring, and the clamps 23 and 24 are rotated clockwise against the spring force of the coil spring.

As shown in FIGS. 16 and 17, in this second embodiment, in order to secure a path for the clamps 84 and 86 of the laminated jig 80, end support rods are provided on both side edges of the transport plate 20. A plurality of clamp entry grooves 63 extending in 26 and 27 and penetrating the transport plate 20 are formed.

Next, a method of laminating the sheet-shaped electrodes 1 in the second embodiment of the transport plate support 19 will be described with reference to FIGS. 22A to 24. The laminating action of the sheet-shaped electrode 1 is performed while the transport plate support 19 and the laminating jig 80 move in synchronization with each other, as in the first embodiment. FIG. 22A shows a case where the new sheet-shaped electrode 1 placed on the transport plate 20 of the transport plate support 19 is aligned with the sheet-shaped electrode 1 laminated in the laminated jig 80. .. When the new sheet-shaped electrode 1 placed on the transport plate 20 is aligned with the sheet-shaped electrode 1 stacked in the laminated jig 80, the pressing mechanism 55 causes the central support rod 28 of the transport plate 20 to be aligned. Is pushed down. As a result, as shown in FIG. 23B, the transport plate 20 is deformed from a flat state to a curved state, and the central portion of the new sheet-shaped electrode 1 placed on the transport plate 20 is placed in the laminated jig 80. It is pressure-welded onto the laminated sheet-shaped electrodes 1.

Next, as shown in FIG. 22C, the central portion of the new sheet-shaped electrode 1 placed on the transport plate 20 is pressed against the sheet-shaped electrode 1 laminated in the laminated jig 80. , The pressing action of the sheet-shaped electrode 1 in the laminated jig 80 by the clamps 84 and 86 is released, and the pressing action of the new sheet-shaped electrode 1 by the clamps 22 and 24 of the transport plate support 19 is released. As a result, both side portions of the new sheet-shaped electrode 1 fall toward the sheet-shaped electrode 1 laminated in the laminated jig 80. Up to this point, it is the same as that of the first embodiment.

Next, in the second embodiment, as shown in FIG. 23A, the central portion of the new sheet-shaped electrode 1 placed on the transport plate 20 is placed on the sheet-shaped electrode 1 laminated in the laminated jig 80. The transport plate 20 is deformed from a curved state to a flat state while being pressure-welded to the transfer plate 20, whereby the entire surface of the new sheet-shaped electrode 1 placed on the transport plate 20 is laminated in the laminated jig 80. It is pressure-welded onto the sheet-shaped electrode 1. Next, how the transport plate 20 is deformed from the curved state to the flat state will be described.

As described above, when the pressing action of the sheet-shaped electrode 1 on the transport plate 20 by the pressing portions 70 of the clamps 21, 22, 23, 24 is released, as shown in FIG. 19A, with the first embodiment. Similarly, the fixed cam that engages with the roller 73 causes the clamps 21 and 22 to rotate counterclockwise against the spring force of the coil spring, and the clamps 23 and 24 resist the spring force of the coil spring. Then it can be rotated clockwise. In this case, as the rotation angle of the clamps 21, 22, 23, 24 increases, the force required to rotate the clamps 21, 22, 23, 24 increases, and this force increases the clamps 21, 22, 23. When the force required to lower the end support rods 26, 27 supporting 23, 24, that is, the movable substrate 150 against the spring force of the compression spring 157 of the anchor rod 155 is exceeded, the end support rods 26, 27 are supported. The rods 26 and 27 start descending together with the movable substrate 150. FIG. 19A shows this time.

Next, when the roller 73 is further lowered by the fixed cam, the clamps 21, 22, 23, 24 hardly rotate, and the end support rods 26, 27 supporting the clamps 21, 22, 23, 24 Together with the movable substrate 150, it is lowered against the spring force of the compression spring 157 of the anchor rod 155. At this time, the lowering action of the end support rods 26 and 27 is continued until the transport plate 20 becomes flat. When the transport plate 20 is in a flat state, it is shown in FIGS. 19B, 20C, 21C and 23A. As can be seen from FIG. 23A, at this time, the entire surface of the new sheet-shaped electrode 1 placed on the transport plate 20 is pressed against the sheet-shaped electrode 1 laminated in the laminated jig 80. At this time, as can be seen from FIGS. 19B, 20C and 21C, the movable substrate 150 is largely separated from the flat top 40a of the base 40.

As shown in FIG. 23A, when the entire surface of the new sheet-shaped electrode 1 placed on the transport plate 20 is pressed against the sheet-shaped electrode 1 laminated in the laminated jig 80, the laminated jig 80 is pressed. The clamps 84 and 86 of the above penetrate into the clamp entry groove 63 shown in FIGS. 16 and 17, and are brought into an upright state as shown in FIG. 23B. Next, the clamps 84 and 86 of the laminated jig 80 are lowered, whereby the sheet-shaped electrodes 1 laminated in the laminated jig 80 are pressed by the clamps 84 and 86 as shown in FIG. 23C. When the sheet-shaped electrodes 1 laminated in the laminated jig 80 are pressed by the clamps 84 and 86, the lowering action of the rollers 73 of the clamps 21, 22, 23 and 24 by the fixed cams is released and the pressing is performed. The downward pushing action of the central support rod 28 of the transport plate 20 by the mechanism 55 is released. As a result, the movable substrate 150 is raised toward the flat top 40a of the base 40, and the central support rod 28 of the transport plate 20 is moved upward, and as a result, as shown in FIG. 24, the transport is carried out. The plate 20 is separated from the sheet-shaped electrode 1 laminated in the laminated jig 80 in a flat state. The transport plate support 19 is then returned by the mover 12 to the mounting position shown in FIG.

As described above, in the second embodiment, the entire surface of the new sheet-shaped electrode 1 placed on the transport plate 20 is pressed against the sheet-shaped electrode 1 laminated in the laminated jig 80. The sheet-shaped electrodes 1 laminated in the laminated jig 80 are pressed by the clamps 84 and 86. In this way, the entire surface of the new sheet-shaped electrode 1 placed on the transport plate 20 is pressed into the laminated jig 80 in a state of being pressure-welded onto the sheet-shaped electrode 1 laminated in the laminated jig 80. By performing the laminating work of the sheet-shaped electrode 1, the misalignment between the new sheet-shaped electrode 1 and the laminated sheet-shaped electrode 1 can be largely suppressed at the time of laminating, and therefore, a new sheet-shaped electrode 1 can be laminated. The sheet-shaped electrodes 1 can be aligned and laminated with high accuracy on the laminated sheet-shaped electrodes 1.

In the embodiment according to the present invention, the transport plate 20 is deformed from a flat state to a curved state so as to be curved along the lateral direction of the transport plate 20 at the time of stacking. The transfer plate 20 can be deformed from a flat state to a curved state so as to be curved along the longitudinal direction of the transfer plate 20. Further, in the embodiment according to the present invention, the transport plate 20 is formed of a flexible metal thin plate having resilience, but the transport plate 20 is formed of a thin plate made of a synthetic resin material having resilience. You can also.

So far, examples according to the present invention have been described by taking the case where the sheet-shaped member is a sheet-shaped electrode for an all-solid-state lithium ion secondary battery as an example, but the present invention has been described for a sheet-shaped member other than the sheet-shaped electrode. Can be applied. Further, in the embodiment according to the present invention, an urging mechanism that urges both side edges of the transport plate 20 in a direction away from each other and a central portion of the transport plate 20 are pressed to change the transport plate 20 from a flat state to a curved state. A pressing mechanism that deforms is used, and these urging mechanisms and pressing mechanisms form an adjusting mechanism that can adjust the degree of curvature of the transport plate 20.

Therefore, in the embodiment according to the present invention, the flexible transfer plate 20, the clamp mechanism 25 for holding the new sheet-like member mounted on the transfer plate 20 on the transfer plate 20, and the transfer plate 20. It is provided with an adjustment mechanism capable of adjusting the degree of curvature of the above, and when a new sheet-like member placed on the transport plate 20 is laminated on the already laminated sheet-like member, this adjustment mechanism is used. The transport plate 20 is deformed from a flat state to a curved state, and a new sheet-like member placed on the transport plate 20 is deformed from a flat state to a curved state. In this case, in the embodiment according to the present invention, the new sheet-shaped member and the already laminated sheet-shaped member are composed of the sheet-shaped electrode 1, and the sheet-shaped electrode 1 is the current collecting metal foil and the current collecting metal. It contains at least one of a positive electrode active material layer and a negative electrode active material layer formed on the foil.

Further, in the embodiment according to the present invention, the above-mentioned adjusting mechanism urges the both side edges of the transport plate 20 in a direction away from each other, and the center of the transport plate located between the side edges of the transport plate 20. It is provided with a pressing mechanism that presses the portion in the direction perpendicular to the surface of the transport plate to deform the transport plate 20 from a flat state to a curved state. In this case, in the embodiment according to the present invention, the end support rods 26 and 27 extending along the both side edges of the transfer plate 20 and the transfer between the side edges of the transfer plate 20 on one side surface of the transfer plate 20. At the center of the plate, a central support rod 28 extending in the same direction as the end support rods 26 and 27 is fixed, and the above-mentioned urging mechanism urges the end support rods 26 and 27 in a direction away from each other. The compression springs 52 and 53 are provided, and the above-mentioned pressing mechanism presses the central support rod 28 in the direction perpendicular to the transport plate surface. Further, in the embodiment according to the present invention, the clamp mechanism 25 described above presses a new sheet-like member mounted on the transport plate 20 onto the transport plate 20 during transport, and the mounting position on the transport plate 20. It is provided with a plurality of clamps 21, 22, 23, 24 rotatably attached to the end support rods 26, 27 for holding in.

On the other hand, in the embodiment according to the present invention, the clamp mechanism 25 provided for the transport plate 20 holds a new sheet-like member on the transport plate 20 at both side edges of the transport plate 20, and the transport plate 20. A laminating jig 80 for laminating a new sheet-shaped member mounted on the 20 is provided, and the laminating jig 80 is mounted on a bottom plate 83 for supporting the sheet-shaped member and the bottom plate 83. A clamp mechanism for holding the sheet-shaped member on the bottom plate 80 is provided, and a new sheet-shaped member mounted on the transport plate 20 is placed on the sheet-shaped member already laminated in the laminated jig 80. At the time of laminating, a new sheet-like member placed on the transport plate 20 is made to face the sheet-like member already laminated in the laminating jig 80, and a clamping mechanism provided on the transport plate 20 is provided. While holding a new sheet-like member on the transport plate 20 by 25, the center portion of the transport plate located in the middle of both side edges of the transport plate 20 is projected toward the laminated jig 80, and the transport plate 20 is curved from a flat state. By deforming to the state, the central portion of the new sheet-like member held on the transport plate 20 is pressed against the sheet-like member already laminated in the laminated jig 80, and the new sheet-like member is formed. A new sheet-like member on the transfer plate 20 by the clamp mechanism 25 provided on the transfer plate 20 with the central portion pressed against the sheet-like member already laminated in the laminated jig 80. By releasing the holding action of the sheet-like member in the laminated jig 80 by the clamping mechanism of the laminated jig 80 and releasing the holding action of the sheet-like member in the laminated jig 80, the sheet-shaped member placed on the transport plate 20 is placed in the laminated jig 80. It is laminated.

In this case, in the embodiment according to the present invention, the transfer plate 20 and the above-mentioned adjustment mechanism are mounted on the mover 12 of the linear motor traveling on the rail 10, and the jig transfer device for transporting the laminated jig 80. When a new sheet-like member mounted on the transport plate 20 is laminated on the sheet-like member already laminated in the laminated jig 80, the upper surface of the laminated jig 80 is the transport plate 20. The transport plate 20 and the laminated jig 80 are moved in synchronization with each other so as to continue to face the new sheet-like member placed on the top.

Further, in the embodiment according to the present invention, in the laminating method in which a new sheet-like member is laminated on the already laminated sheet-like member, the new sheet-like member is spaced apart from the already laminated sheet-like member. Arranged in an aligned manner, the new sheet-shaped member is deformed from a flat state to a curved state, and the central portion of the new sheet-shaped member is pressed against the already laminated sheet-shaped member, and the central portion of the new sheet-shaped member is pressed. Is pressure-welded onto the already laminated sheet-like member, and a new sheet-like member is laminated on the already laminated sheet-like member. In this case, in the embodiment according to the present invention, the new sheet-shaped member and the already laminated sheet-shaped member are composed of the sheet-shaped electrode 1, and the sheet-shaped electrode 1 is the current collecting metal foil and the current collecting metal. It contains at least one of a positive electrode active material layer and a negative electrode active material layer formed on the foil.

Further, in the embodiment according to the present invention, in the laminating method in which a new sheet-like member is laminated on the already laminated sheet-like member, the new sheet-like member is spaced apart from the already laminated sheet-like member. The new sheet-like member is flattened by arranging them in an aligned manner and projecting the central portion of the new sheet-like member toward the already laminated sheet-like member while holding both side edges of the new sheet-like member by the clamp mechanism 25. The central portion of the new sheet-like member is pressed against the already laminated sheet-like member by deforming from the normal state to the curved state, and the central portion of the new sheet-like member is placed on the already laminated sheet-like member. In the state of pressure contact, the holding action of the new sheet-like member on the transport plate 20 by the clamp mechanism 25 is released, and the holding action of the already laminated sheet-like member by another clamping mechanism is released. A new sheet-like member is laminated on the already laminated sheet-like member.

Further, in the embodiment according to the present invention, in the laminating method in which a new sheet-like member is laminated on the already laminated sheet-like member, the new sheet-like member is spaced apart from the already laminated sheet-like member. Arranged in an aligned manner, the new sheet-shaped member is deformed from a flat state to a curved state, and the central portion of the new sheet-shaped member is pressed against the already laminated sheet-shaped member, and the central portion of the new sheet-shaped member is pressed. Is pressed onto the already laminated sheet-like member, and by deforming the new sheet-like member from a curved state to a flat state, the entire new sheet-like member is placed on the already laminated sheet-like member. A new sheet-like member is laminated on the already laminated sheet-like member.

In this case, in the embodiment according to the present invention, in the laminating method in which a new sheet-like member is laminated on the already laminated sheet-like member, the new sheet-like member is spaced apart from the already laminated sheet-like member. A new sheet-like member is formed by aligning and arranging the sheet-like members so as to hold both side edges of the new sheet-like member by the clamp mechanism 25 and projecting the central portion of the new sheet-like member toward the already laminated sheet-like member. The central portion of the new sheet-like member is deformed from a flat state to a curved state, and the central portion of the new sheet-like member is pressed against the already laminated sheet-like member, and the central portion of the new sheet-like member is placed on the already laminated sheet-like member. The holding action of the new sheet-like member on the transport plate 20 by the clamp mechanism 25 is released, and the holding action of the already laminated sheet-like member by another clamp mechanism is released, and the holding action is released. By deforming the new sheet-like member from the curved state to the flat state, the entire new sheet-like member is pressed against the already laminated sheet-like member, and the entire new sheet-like member is already laminated. In a state of being pressure-welded onto the shaped member, the new sheet-shaped member is held on the already laminated sheet-shaped member by this other clamp mechanism, whereby the new sheet-shaped member is already laminated. It is laminated on the member.

1 Sheet-shaped electrode 12, 31 Movable element 19 Transfer plate support 20 Transfer plate 21, 22, 23, 24 Clamp 40 Laminated jig 84,86 Clamp A Plate transfer device B Jig transfer device

Claims (12)

It is equipped with a flexible transfer plate, a clamp mechanism for holding a new sheet-like member mounted on the transfer plate on the transfer plate, and an adjustment mechanism that can adjust the degree of curvature of the transfer plate. When a new sheet-shaped member placed on the transport plate is laminated on the already laminated sheet-shaped member, the transport plate is deformed from a flat state to a curved state by the adjusting mechanism and transported. A laminating device that transforms a new sheet-like member placed on a plate from a flat state to a curved state. The new sheet-like member and the sheet-like member already laminated are composed of a sheet-like electrode, and the sheet-like electrode includes a metal foil for current collection, a positive electrode active material layer formed on the metal foil for current collection, and a positive electrode active material layer. The laminating apparatus according to claim 1, further comprising at least one of the negative electrode active material layers. The adjusting mechanism urges both side edges of the transport plate in a direction away from each other, and a transport plate central portion located between the both side edges of the transport plate in a direction perpendicular to the transport plate surface. The laminating device according to claim 1, further comprising a pressing mechanism for deforming the transport plate from a flat state to a curved state by pressing the transfer plate. On one side surface of the transport plate, an end support rod extending along both side edges of the transport plate and a center extending in the same direction as the end support rod at the center of the transport plate between the side edges of the transport plate. The portion support rod is fixed, and the urging mechanism includes a compression spring that urges the end support rods in a direction away from each other, and the pressing mechanism conveys the central portion support rod to a transport plate. The laminating device according to claim 3, wherein the laminating device presses in a direction perpendicular to the surface. The clamp mechanism is rotatable on the end support rod in order to press a new sheet-like member mounted on the transport plate onto the transport plate and hold it at the mounting position on the transport plate during transport. The laminating apparatus according to claim 4, further comprising a plurality of clamps attached to. A clamp mechanism provided for the transport plate holds a new sheet-shaped member on the transport plate at both side edges of the transport plate, and the new sheet-shaped member placed on the transport plate is held. It is provided with a laminating jig for laminating, and the laminating jig is provided with a bottom plate for supporting the sheet-shaped member and a clamping mechanism for holding the sheet-shaped member placed on the bottom plate on the bottom plate. When the new sheet-like member mounted on the transport plate is laminated on the sheet-like member already laminated in the laminating jig, the new sheet-like member mounted on the transport plate is used. Faced with the sheet-like member already laminated in the laminated jig, the new sheet-like member is held on the transfer plate by the clamp mechanism provided for the transfer plate, and both side edges of the transfer plate are held. By projecting the central portion of the transport plate located in the middle toward the laminated jig and deforming the transport plate from a flat state to a curved state, the central portion of the new sheet-like member held on the transport plate is formed by the laminated jig. The central portion of the new sheet-like member is pressure-welded onto the sheet-like member already laminated in the laminated jig, and the central portion of the new sheet-like member is pressure-welded to the sheet-like member already laminated in the laminated jig. By releasing the holding action of the new sheet-like member on the conveying plate by the clamp mechanism provided and the holding action of the sheet-like member in the laminated jig by the clamping mechanism of the laminated jig, the holding action on the conveying plate is released. The laminating apparatus according to claim 1, wherein the sheet-like member placed on the surface of the laminating jig is laminated in a laminating jig. The transfer plate and the adjustment mechanism are mounted on a mover of a linear motor traveling on a rail, and are provided with a jig transfer device for transporting the laminated jig, and are mounted on the transfer plate. When laminating a new sheet-like member on a sheet-like member already laminated in the laminating jig, the upper surface of the laminating jig continues to face the new sheet-like member placed on the transport plate. The laminating apparatus according to claim 6, wherein the transport plate and the laminating jig are moved in synchronization with each other. In a laminating method in which a new sheet-like member is laminated on an already laminated sheet-like member, the new sheet-like member placed on the flexible transport plate is spaced from the already-laminated sheet-like member. The new sheet-like member is deformed from the flat state to the curved state by bending the transport plate from the flat state, and the central portion of the new sheet-like member is already laminated. Lamination in which the new sheet-like member is laminated on the already laminated sheet-like member in a state where the central portion of the new sheet-like member is pressure-welded onto the already laminated sheet-like member. Method. The new sheet-like member and the sheet-like member already laminated are composed of a sheet-like electrode, and the sheet-like electrode includes a metal foil for current collection, a positive electrode active material layer formed on the metal foil for current collection, and a positive electrode active material layer. The laminating method according to claim 8, further comprising at least one of the negative electrode active material layers. In a laminating method in which a new sheet-like member is laminated on an already laminated sheet-like member, the new sheet-like member is aligned with the already-laminated sheet-like member at intervals, and the new sheet-like member is arranged. The new sheet-like member is deformed from a flat state to a curved state by projecting the central portion of the new sheet-like member toward the already laminated sheet-like member while holding both side edges of the new sheet-like member by a clamp mechanism. With the central portion of the new sheet-shaped member pressed against the already laminated sheet-shaped member and the central portion of the new sheet-shaped member pressed against the already laminated sheet-shaped member, the clamp mechanism is used. The new sheet-like member is already laminated by releasing the holding action of the new sheet-like member on the transport plate and releasing the holding action of the already laminated sheet-like member by another clamp mechanism. A laminating method for laminating on a sheet-like member. In a laminating method in which a new sheet-like member is laminated on an already laminated sheet-like member, the new sheet-like member placed on the flexible transport plate is spaced from the already-laminated sheet-like member. The new sheet-like member is deformed from the flat state to the curved state by bending the transport plate from the flat state, and the central portion of the new sheet-like member is already laminated. A new sheet-like member is deformed from a curved state to a flat state while being pressure-welded onto the member and the central portion of the new sheet-like member is pressed-contacted onto the already laminated sheet-like member. A laminating method in which the entire sheet-like member is pressure-welded onto an already laminated sheet-like member, whereby a new sheet-like member is laminated on the already-laminated sheet-like member. In a laminating method in which a new sheet-like member is laminated on an already laminated sheet-like member, the new sheet-like member is aligned with the already-laminated sheet-like member at intervals, and the new sheet-like member is arranged. The new sheet-like member is deformed from a flat state to a curved state by projecting the central portion of the new sheet-like member toward the already laminated sheet-like member while holding both side edges of the new sheet-like member by a clamp mechanism. With the central portion of the new sheet-shaped member pressed against the already laminated sheet-shaped member and the central portion of the new sheet-shaped member pressed against the already laminated sheet-shaped member, the clamp mechanism is used. The holding action of the new sheet-shaped member on the transport plate is released, the holding action of the already laminated sheet-shaped member by another clamp mechanism is released, and the new sheet-shaped member is changed from the curved state to the flat state. The entire new sheet-like member is pressure-welded onto the already laminated sheet-like member, and the entire new sheet-like member is pressure-welded onto the already-laminated sheet-like member. A laminating method in which a new sheet-like member is held on an already laminated sheet-like member by the clamp mechanism of the above, and a new sheet-like member is laminated on the already laminated sheet-like member.

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